diff --git a/sandbox.go b/sandbox.go
index 9a8e8a3..cc47954 100644
--- a/sandbox.go
+++ b/sandbox.go
@@ -468,6 +468,7 @@
 	cmd.Dir = tmpDir
 	cmd.Env = []string{"GOOS=linux", "GOARCH=amd64", "GOROOT=/usr/local/go-faketime"}
 	cmd.Env = append(cmd.Env, "GOCACHE="+goCache)
+	cmd.Env = append(cmd.Env, "CGO_ENABLED=0")
 	// Create a GOPATH just for modules to be downloaded
 	// into GOPATH/pkg/mod.
 	cmd.Args = append(cmd.Args, "-modcacherw")
diff --git a/tests.go b/tests.go
index 760c971..03bc39d 100644
--- a/tests.go
+++ b/tests.go
@@ -567,4 +567,18 @@
 
 }
 `, want: "2012-07-09 05:02:00 +0200 CEST\n2012-07-09 00:00:00 +0200 CEST\n"},
+	{
+		name: "cgo_enabled_0",
+		prog: `
+package main
+
+import (
+	"fmt"
+	"net"
+)
+
+func main() {
+	fmt.Println(net.ParseIP("1.2.3.4"))
+}
+`, want: "1.2.3.4\n"},
 }